Table 2.
Characteristics of the patients according to the treatments for lung cancer
| Characteristics | All (N=206) |
Surgery (n=59) |
Chemotherapy (n=30) |
No treatment (n=117) |
P-value | P for trend |
|---|---|---|---|---|---|---|
| Age, years, mean ± SD | 69.7±5.1 | 67.2±4.7 | 67.2±4.0 | 71.7±8.1 | <0.001 | <0.001 |
| Sex, n (%) | 0.87 | 0.52 | ||||
| Male | 128 (62.1) | 35 (59.3) | 19 (63.3) | 74 (63.2) | ||
| Female | 78 (37.9) | 24 (40.7) | 11 (36.7) | 43 (36.8) | ||
| Smoking history, mean ± SD, pack/year | 35±23 | 36±25 | 40±24 | 33±23 | 0.22 | 0.44 |
| Pathology, n (%) | 0.001 | 0.85 | ||||
| Squamous carcinoma | 98 (47.6) | 25 (42.4) | 14 (46.7) | 59 (50.4) | ||
| Adenocarcinoma | 73 (35.4) | 30 (50.8) | 5 (16.7) | 38 (32.5) | ||
| Small-cell carcinoma | 35 (17.0) | 4 (6.8) | 11 (36.7) | 20 (17.1) | ||
| Lung cancer, n (%) | <0.001 | <0.001 | ||||
| Stage I | 36 (17.5) | 20 (33.9) | 5 (16.7) | 11 (9.4) | ||
| Stage II | 47 (22.8) | 27 (45.8) | 9 (30.0) | 11 (9.4) | ||
| Stage IIIa | 38 (18.4) | 12 (20.3) | 9 (30.0) | 17 (14.5) | ||
| Stage IIIb | 40 (19.4) | 0 | 6 (20.0) | 34 (29.1) | ||
| Stage IV | 45 (21.8) | 0 | 1 (3.33) | 44 (37.6) | ||
| COPD, n (%) | <0.001 | <0.001 | ||||
| Grade I | 41 (19.9) | 24 (40.7) | 3 (10.0) | 14 (12.0) | ||
| Grade II | 69 (33.5) | 28 (47.5) | 6 (20.0) | 35 (29.9) | ||
| Grade III | 68 (33.0) | 7 (11.9) | 16 (53.3) | 45 (38.5) | ||
| Grade IV | 28 (13.6) | 0 | 5 (16.7) | 23 (19.7) | ||
| DLCO (% predictive value), mean ± SD | 58.4±13.6 | 70.2±6.1 | 57.0±7.7 | 52.8±13.7 | <0.001 | <0.001 |
Abbreviation: DLCO, diffusion capacity for carbon monoxide of lung.